Para acceder a los documentos con el texto completo, por favor, siga el siguiente enlace: http://hdl.handle.net/2117/25219

Studying radon exhalation rates variability from phosphogypsum piles in the SW of Spain
López Coto, Israel; Mas Balbuena, Jose Luis; Vargas Drechsler, Arturo; Bolivar Raya, Juan Pedro
Universitat Politècnica de Catalunya. Institut de Tècniques Energètiques; Universitat Politècnica de Catalunya. GREENER - Grup de recerca d´estudis energètics i de les radiacions
Nearly 1.0×108 tonnes of phosphogypsum were accumulated during last 50 years on a 1200ha disposal site near Huelva town (SW of Spain). Previous measurements of exhalation rates offered very variable values, in such a way that a worst case scenario could not be established. Here, new experimental data coupled to numerical simulations show that increasing the moisture contents or the temperature reduces the exhalation rate whilst increasing the radon potential or porosity has the contrary effect. Once the relative effects are compared, it can be drawn that the most relevant parameters controlling the exhalation rate are radon potential (product of emanation factor by 226Ra concentration) and moisture saturation of PG. From wastes management point of view, it can be concluded that piling up the waste increasing the height instead of the surface allows the reduction of the exhalation rate. Furthermore, a proposed cover here is expected to allow exhalation rates reductions up to 95%. We established that the worst case scenario corresponds to a situation of extremely dry winter. Under these conditions, the radon exhalation rate (0.508Bqm-2s-1) would be below though close to the upper limit established by U.S.E.P.A. for inactive phopsphogypsum piles (0.722Bqm-2s-1).
Àrees temàtiques de la UPC::Enginyeria química::Impacte ambiental
Radon
Exhalation rate
Mitigation
Phopsphogypsum piles
Radon
Variability
Radó
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
info:eu-repo/semantics/publishedVersion
Artículo
         

Mostrar el registro completo del ítem

Documentos relacionados

Otros documentos del mismo autor/a

Baeza, A.; Corbacho, J.A.; Rodríguez, Alicia; Galván, J.; García Tenorio, R.; Manjón, G.; Mantero, Juan; Vioque, I.; Arnold Arias, Dèlia; Grossi, Claudia; Serrano Carreño, M. Isabel; Valles Murciano, M. Isabel; Vargas Drechsler, Arturo
Camp Brunés, Anna; Vargas Drechsler, Arturo
Grossi, Claudia; Curcoll, R.; Morguí, J.A.; Àgueda, A.; Ealo, M.; Occhipinti, P.; Nofuentes, M.; Sánchez-García, L.; Batet Torrell, Óscar; Vargas Drechsler, Arturo; Vermeulen, A.T.; Rodó, X.
Camacho García, Antonia; Laubenstein, M.; Vargas Drechsler, Arturo; Serrano Carreño, M. Isabel; Vallés, I.; Plastino, W.; Duch Guillen, María Amor
Vargas Drechsler, Arturo; Camps Brunés, Anna; Serrano Carreño, M. Isabel; Duch Guillen, María Amor